Avtech AVC-756D, User Manual

Page: 25 / 92

ADVANCED OPERATION
21
Note: When USB backup starts, it’s not allowed for OSD menu operation or network backup in order to
keep the consistency of the video data.
Note: You can backup up to 2GB video data for one-time USB backup. To backup more data, please set
the time & channel(s) you want, and start USB backup again.
Move to “BACKUP”, and press ”ENTER”. You will see the following submenu items:
1) START TIME
Select the start time of the backup.
2) END TIME
Select the end time of the backup.
3) AVAILABLE SIZE
Display the available capacity in the inserted USB flash drive.
4) CHANNEL
Select channels by pressing “ENTER” button to change the symbol in front of the channel number.
Symbol “
” means that this channel is selected to backup.
Symbol “
□
” means that this channel is not selected to backup.
5) HDD NUM
Select the HDD containing the data you need.
6) START
Press “ENTER” to start copying the chosen data to the USB flash drive.
Note: Depending on the model you have, this DVR series supports UP TO FOUR audio-in channels,
which are Audio 1, Audio 2, Audio 3 and Audio 4 accordingly, and the audio data will be recorded
with the video data of CH1, CH2, CH3 and CH4 respectively.
For example, if your DVR supports two audio-in, its audio channels will be Audio 1 and Audio 2.
When you playback CH1, you will also hear the audio recording of Audio 1.
5.8.2. DISK BACKUP (Selected models only)
DISK BACKUP is only available for the models with a DVD writer built-in, or the models supporting a USB DVD
writer.
Note: The USB DVD writer is not supplied within the sales package, and needs to be purchased
separately. For the compatible USB DVD writer list, please refer to “APPENDIX 5 COMPATIBLE USB
DVD WRITER LIST” at page 36.
FOR USB DVD WRITER
Before making disk backup by a USB DVD writer, make sure:
Your DVR supports USB DVD writer connection, and the DVR firmware is as follows:
(1) For 16CH models: 1055-1015-1010-1023-1007 or later
(2) For 8CH models: 1030-1015-1010-1023-1007 or later
Your DVD writer is supported by the DVR. Please check the compatible USB DVD writer list at page 36.
When the above criteria are met, follow the steps below to connect the USB DVD writer to your DVR:
STEP1: Turn on your DVR, and wait till the system initialization is completed.
Note: If your DVR is powered up, please skip to STEP2.